{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "This study also revealed the putative microtubule - binding site of KIF4 , thus providing structural insights that describe the specific binding of KIF4 to the microtubule ."}
{"Chemical": []}